Apply TaskView's (non)fullscreenTranslation correctly in emulated landscape

PS4: Change approach to return a FloatProperty instead, as getPagedOrientationHandler() can throw NPE when called without a parent, as applyTranslationX/Y is called in onRecycle

Fixes: 186432016
Test: In small screen without home screen rotation, TaskView stay in position when rotating and icon is in displayed correct position after rotation. In quick switch, Task window also fill the screen.
Test: In large screen when dragging up from last task in quick switch, TaskView stays on screen when being dragged up
Change-Id: I54247e81066913e5cc072cf72543d780ff55ccaf